One of my very favorite stories, which I will not name for copyright's sake, contains a reference to an obscure treat that entraps a lad by its very taste. Many fairy tales have treats: Hansel and Gretel nibble the witch's gingerbread house, Red Riding Hood brings a basket of goodies to her grandma, and the Gingerbread Man runs away with a posse to chase him.
Where do treats play a role in your book? Do they? Have you given much thought to the kinds of things your characters like to eat?
What about the antagonist? Does the bad guy have a sweet tooth? A taste for apples? A hunger for ham? (No wait, that's the Big Bad Wolf.)
Write on! No copyrights here. Use any ideas, free of charge!